Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of magnetic biological microcapsule, preparation method and application thereof

A microcapsule and biological technology, applied in biochemical equipment and methods, microcapsule preparations, microbial-based methods, etc., can solve the problems of slow repair speed of plant methods, high cost of physical and chemical methods, and difficulty in popularization and application. Migration of free heavy metals, no secondary pollution, good effect

Active Publication Date: 2021-09-24
JIANGSU UNIV OF SCI & TECH
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above methods have a good effect in remediating heavy metal pollution, but there are still many problems. The physical and chemical methods are high in cost, complicated in process, prone to secondary pollution, and the remediation speed of plant methods is slow, so it is difficult to apply them on a large scale.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of magnetic biological microcapsule, preparation method and application thereof
  • A kind of magnetic biological microcapsule, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A preparation method of magnetic biomicrocapsules, the method steps are as follows:

[0028] (1) get 2mol / L calcium chloride solution and 2mol / L sodium bicarbonate solution of the amount of equal substance respectively, add polystyrene sodium sulfonate in calcium chloride solution according to the ratio of 10g / L, according to 10g / L Add NdFeB in the ratio of NdFeB, add equal mass of sodium polystyrene sulfonate and NdFeB to the sodium bicarbonate solution, stir at a speed of 1200rpm, and stir for 1 hour; slowly add the calcium chloride solution to the NaHCO3 solution dropwise , the reaction temperature is 50°C, and the standing time is 2 hours; centrifugation is used, the sediment is washed with ethanol solution, and porous calcium carbonate microcapsules are obtained after drying. The calcium carbonate microcapsules are spherical porous structures with a diameter of 50-65 μm.

[0029] (2) Bacillus colloidus is inoculated in the culture medium solution after sterilizatio...

Embodiment 2

[0034] A preparation method of magnetic biomicrocapsules, the method steps are as follows:

[0035] (1) get 2mol / L calcium chloride solution and 2mol / L sodium bicarbonate solution of the amount of equal substance respectively, add polystyrene sodium sulfonate in the calcium chloride solution according to the ratio of 5g / L, according to 1g / L Add rubidium-iron-boron in proportion to the sodium bicarbonate solution, add polystyrene sodium sulfonate and rubidium-iron-boron of equal mass, stirring speed 1000rpm, stirring time 1.5 hours; slowly drop calcium chloride solution into the sodium bicarbonate solution In the process, the reaction temperature is 15°C, and the standing time is 1.5 hours; centrifugation is used, the sediment is washed with ethanol solution, and porous calcium carbonate microcapsules are obtained after drying. The calcium carbonate microcapsules are spherical porous structures with a diameter of 85-100 μm.

[0036] (2) Bacillus colloidus is inoculated in the c...

Embodiment 3

[0041] (1) Add 10g / L organic template polystyrene sodium sulfonate, 5g / L magnetic particles NdFeB to calcium chloride solution and sodium bicarbonate solution respectively, stirring speed 800rpm, stirring time 1 hour; Calcium chloride The solution is slowly added dropwise into the sodium bicarbonate solution, the reaction temperature is 35°C, and the standing time is 2 hours; the sediment is washed by centrifugation and ethanol solution, and the porous calcium carbonate microcapsules are obtained after drying. The calcium carbonate microcapsules are 62 in diameter. -73μm spherical porous structure.

[0042] (2) Bacillus colloidus is inoculated in the culture medium solution after sterilization, every liter of culture medium contains sucrose 8g, Na 2 HPO 4 12H 2 O 2g, MgSO 4 0.4g, CaCO 3 0.5g, KCl 0.1g, (NH 4 ) 2 SO 4 0.4g, and control the pH to 7, shake culture at 35°C for 48 hours to obtain the bacterial liquid containing Bacillus colioids, add manganese chloride, a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
diameteraaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a magnetic biological microcapsule, a preparation method and an application thereof. The preparation steps are: (1) adding an organic template to a calcium chloride solution and a sodium bicarbonate solution respectively, adding magnetic particles respectively, and dissolving the calcium chloride The solution is slowly added dropwise to the sodium bicarbonate solution, left standing, separated, washed, and dried to obtain porous calcium carbonate microcapsules; (2) preparing microbial spore culture solution; (3) preparing microcapsules wrapped with microbial spores; (4) The pores of the microcapsules are blocked. Place the microcapsules prepared above in sewage containing heavy metal ions, stir slowly, and monitor the concentration of heavy metal ions in the sewage; the results show that the magnetic biological microcapsules of the present invention can effectively mineralize free heavy metal ions, form stable minerals, and prevent heavy metal Migration, the heavy metal pollution restoration method disclosed by the invention has low cost, fast speed, good effect and no secondary pollution.

Description

technical field [0001] The invention belongs to the interdisciplinary science and technology of material science, microbiology and environmental science, and specifically relates to a magnetic biological microcapsule, a preparation method and an application thereof. Background technique [0002] With the sustained and rapid development of my country's economy, the problem of heavy metal pollution in the ecological environment is becoming more and more serious. At present, the land area polluted by heavy metals is as high as more than 20 million hectares, accounting for about one-fifth of the country's cultivated land area, and the direct economic losses caused by heavy metal pollution are about tens of billions of yuan every year. The migration of heavy metals in polluted soil to food crops will cause serious food safety problems. For example, in Hunan Province, which is known as the "Rice Township", the serious consequences of excessive heavy metals have caused great harm t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B01J13/02C12N11/14C12N1/20C12N3/00C12R1/07
CPCB01J13/02C12N1/20C12N3/00C12N11/14
Inventor 詹其伟
Owner JIANGSU UNIV OF SCI & TECH